<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
       <style>
        *{
            padding: 0px;
            margin: 0px;
            list-style: none;
        }
        #center{
            width: 1160px;
            height: 730px;
            margin: 0 auto;
            margin-top: 200px;
        }
        li{
            width: 220px;
            height: 170px;
            border: 10px ridge whitesmoke;
            box-sizing: border-box;
            float: left;
            margin-top: 10px;
            margin-left: 10px;
            position: relative;
        }
        .big{
            width: 440px;
            height: 340px;
            position: absolute;
            background-color: pink;
            top: -110px;
            left: -110px;
            display: none;
            border: 5px ridge white;
            z-index: 10;
        }
        .big>img{
            width: 100%;
            height: 100%;
        }
        li:hover>.big{
            display: block;
        }
    </style>
</head>
<body>
    <div id="center">
        <li>
            <img src="./img风景/photo01.jpg" alt="">
            <div class="big">
                <img src="./img风景/photo01.jpg" alt="">
            </div>
        </li>
    </div>
</body>
</html>